1dnl #
2dnl # 4.6 API change
3dnl # Added CPU hotplug APIs
4dnl #
5AC_DEFUN([ZFS_AC_KERNEL_SRC_CPU_HOTPLUG], [
6	ZFS_LINUX_TEST_SRC([cpu_hotplug], [
7		#include <linux/cpuhotplug.h>
8	],[
9		enum cpuhp_state state = CPUHP_ONLINE;
10		int (*fp)(unsigned int, struct hlist_node *) = NULL;
11		cpuhp_state_add_instance_nocalls(0, (struct hlist_node *)NULL);
12		cpuhp_state_remove_instance_nocalls(0, (struct hlist_node *)NULL);
13		cpuhp_setup_state_multi(state, "", fp, fp);
14		cpuhp_remove_multi_state(0);
15	])
16])
17
18AC_DEFUN([ZFS_AC_KERNEL_CPU_HOTPLUG], [
19	AC_MSG_CHECKING([whether CPU hotplug APIs exist])
20	ZFS_LINUX_TEST_RESULT([cpu_hotplug], [
21		AC_MSG_RESULT(yes)
22		AC_DEFINE(HAVE_CPU_HOTPLUG, 1, [yes])
23	],[
24		AC_MSG_RESULT(no)
25	])
26])
27